Dissertation > Excellent graduate degree dissertation topics show

Biomimetic Synthesis of the Micro/nanostructure ZrO2 Using Biological Materials as Templates

Author: FanXiaoJuan
Tutor: SongXiuQin
School: Hebei Normal
Course: Inorganic Chemistry
Keywords: ZrO2 Micro-/nanostructure Biomimetic Synthesis Biological Template
CLC: TB383.1
Type: Master's thesis
Year: 2011
Downloads: 152
Quote: 0
Read: Download Dissertation

Abstract


ZrO2 has been applied widely in many fields such as catalysts and catalytic supports, adsorption and separation, metal oxide-semiconductor devices due to its thermal and chemical stability. The structure, morphology and size of ZrO2 are closely related to its properties and influence its potential applications. Therefor, it is important to control the structure, morphology and size of ZrO2. In this paper, the method of biomimetic synthesis which is enlightened by biomineralization thought was introduced into experiment. We have prepared a variety of micro-/nanostructure ZrO2. It realizes the control of the morphology of ZrO2 by the role of the template and inducing which are provided by yeast and pollen. The main contents are as following:1. The concepts of biological mineralization and biomimetic synthesis were stated. The situation, characteristic and advantage of the inorganic materials, which had a variety of morphology and were synthetized by the method of biomimetic synthesis, were reviewed, analyzed and summarized.2. The micro-/nanostructure hollow, nuclear-shell and solid ZrO2 microspheres have been prepared using yeasts as bio-templates by the method of biomimetic synthesis. The experiment studied the morphology, strcture and the strcture of porous of micro-/ nanostructure ZrO2 by adjusting temperature, pH, the time of water-bath and ageing. Especially, the experiment conditions about forming hollow microspheres were analysed .The mechanism model of the different morphology microspheres which were prepared by the double roles of the template and inducing of the yeast was put forward.3. The micro-/nanostructure triangular ZrO2 has been prepared by the method of room-ageing, microwave and ultrasound using Camellia pollen grains as template. The experiment studied the impact of synthetic methods and experimental condition for the morphology, strcture, and the strcture of porous of micro-/nanostructure triangular ZrO2.The interaction between pollon and the precursor of ZrO2 was studied by means of IR .The results showed that the pollon played the roles of template and inducing.4. In experiment, ZrO2 particals cumulated into porous, and we probed the properties of hydrogen storage of micro-/nanostructure triangular ZrO2 primarily. The differences and reasons of the hydrogen storage properties of the product were analysed.

Related Dissertations

  1. Reactive Hot-Pressing and Mechanical Properties of （ZrB2-ZrO2）/BN Composites,TB332
  2. Synthesis and Characterization of Polyaniline Micro/nano Structure and Its Composites,TB383.1
  3. Effect of Adding ZrO 2 Nanopowder on Microstructure and Mechanical Properties of Carbon Steel,TB383.1
  4. Formation of PVB-ZrO2 Hybrid Films for Laminated Glass,TB383.2
  5. Preperation of Low Friction and Wear Resistant High-Purity Alumina Ceramic,TQ174.1
  6. Studies on Catalysts for Hydrogen Production from Low Temperature Steam Reforming of Dimethyl Ether,TQ426.94
  7. Investigation on Preparation and Properties of Zirconia Fibers and Zirconia Fibers Board,TQ343
  8. Preparation and Properties of Functional Composite Coatings Embedded ZrO2 Ceramic Particles,TG174.4
  9. Study on Two Dimensional Ultrasonic Vibration Grinding Temperature Field Distribution Character of Nano ZrO2 Ceramics,TG580.6
  10. Tribological Properties and Corrosion Resistance to Molten Steel of （ZrB2-ZrO2）/BN Composites,TB332
  11. Preparation of Zirconia-based Dental Bioceramics and Measurement of Its Mechanical Performance,TQ174.75
  12. Study of Laser Machining Ceramic Green Bodies,TQ174.6
  13. Preparation and Luminescent Properties of Rare Earth Ion Doped Nanocrystalline ZrO2-Al2O3 Composite Powder,TB383.1
  14. Preparation and Quantitative Analysis of Tetragonal Nano-ZrO2 Powder,TB383.1
  15. Synthesis of ZrO2-SiC Composite Powder and Its Application,TB383.3
  16. Biomimetic synthesis of calcium salts in alcohol-water system,O621.3
  17. Research on Preparing Ultrafine ZrO2/SiC Fibers by Electrospinning,TQ343.6
  18. Joining of ZrO2 Ceramics by Microwave Sintering with SiC,TQ174.75
  19. Biomimetic Synthesis and Assembly of Inorganic Nanoparticles in the Presence of Metal (Ca, Mg) Dodecyl Sulfates,TB383.1
  20. Integrated Study on Solid Superacid Catalyst for Normal Paraffin Isomerization,TQ203.2
  21. Preparation and Characterization of La Doping on WO3/ZrO2 Solid Superacid Catalyst,TQ426

CLC: > Industrial Technology > General industrial technology > Materials science and engineering > Special structural materials
© 2012 www.DissertationTopic.Net  Mobile